Water Hardness and Quality in Wilton
Supplied by Wessex Water · Salisbury
Wilton has hard water with quality that meets all UK drinking water standards.
Check a specific postcode in Wilton
Water Quality Scorecard
Total Hardness
Guideline: 150+ mg/l is considered hard
292.3mg/l CaCO₃
UK Average: 197.72 mg/l CaCO₃Well Above Average
LowAverageHigh
pH Level
UK Standard: 6.5 – 9.5
7.6pH units
UK Average: 7.43 pH unitsWell Above Average
LowAverageHigh
Free Chlorine
Guideline: below 1 mg/l
0.3mg/l
UK Average: 0.45 mg/lBelow Average
LowAverageHigh
Nitrate
UK Standard: max 50 mg/l
37mg/l
UK Average: 16.9 mg/lWell Above Average
LowAverageHigh
Lead
UK Standard: max 10 µg/l
0.7µg/l
UK Average: 1.08 µg/lAverage
LowAverageHigh
Fluoride
UK Standard: max 1.5 mg/l
0.08mg/l
UK Average: 0.19 mg/lBelow Average
LowAverageHigh
Water Hardness in Wilton
Hardness is the most searched water quality metric. It affects limescale buildup in kettles, boilers, and pipes.
292.3mg/l CaCO₃Hard
Soft
Mod. Soft
Slightly Hard
Mod. Hard
Hard
Very Hard
Wilton has hard water at 292.3 mg/l. You will likely experience significant limescale buildup in kettles, boilers, and on bathroom surfaces. Many residents in your area use water softeners or anti-limescale products.
Water Source Information
- Water Company
- Wessex Water
- Supply Zone
- Salisbury
- Source Type
- Groundwater
- Treatment Works
- Salisbury Treatment Works
- Last Tested
- 2025-12-31
- Data Source
- Wessex Water
Frequently Asked Questions
Is the water hard in Wilton?▾
Yes, Wilton has hard water at 292.3 mg/l CaCO₃. This is classified as "Hard" on the standard scale. You may notice limescale buildup in kettles and on taps.
Is Wilton tap water safe to drink?▾
Yes, tap water in Wilton is safe to drink. It is treated and tested by Wessex Water and meets all UK Drinking Water Inspectorate standards. All tested parameters are within regulatory limits.
What is the water hardness in Wilton?▾
The water hardness in Wilton is 292.3 mg/l CaCO₃, which is classified as "Hard". This is above the UK national average of 170 mg/l.
Who supplies water to Wilton?▾
Water in Wilton is supplied by Wessex Water, which serves the South West England region. The water comes from underground aquifers and is treated at Salisbury Treatment Works.